bug-gnu-emacs
[Top][All Lists]
Advanced
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#16200: shr should allow user to toggle HTML-specified colors on and

From: Ivan Shmakov
Subject: bug#16200: shr should allow user to toggle HTML-specified colors on and off
Date: Fri, 20 Dec 2013 13:20:47 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) 
Package:  emacs
Severity: wishlist

        Badly-formatted netnews articles aren’t unknown in Usenet, so
        Gnus already comes with a set of commands [1] to improve the
        formatting of the messages as they’re shown to the user.

        I’d argue, however, that ugly HTML documents are much more
        common on the Web than such articles are on Usenet.  Granted,
        shr.el does not (as of yet) support a good deal of features
        casually used to degrade the reader’s experience.  Still, it
        supports the ‘fgcolor’, ‘text’ and ‘bgcolor’ attributes to
        <body />, and the ‘color’ attribute to <font />, leaving the
        user no easy way to get rid of whatever color scheme the Web
        page author has decided to use.

        Also to note is that both the <font /> element and the ‘bgcolor’
        and ‘text’ attributes to <body /> were already deprecated as of
        HTML 4.01 (developed back in 1997–1999 – some 15 years ago! and
        the specification doesn’t seem to mention ‘fgcolor’ at all) [2],
        and are entirely removed as of the latest HTML5 CR [3].

        My guess is that there should be a (customizable) variable
        specifying whether these attributes should be honored by
        default, and a command (or a minor mode?) to change the setting
        for just the current buffer.

        As a crude (but working) workaround, those suffering of the
        “too much color” problem may choose to redefine the shr-tag-body
        and shr-tag-font element handlers to simplistic wrappers around
        shr-generic in their ~/.emacs, like:

(eval-after-load 'shr
  '(progn
     (defun shr-tag-body (cont)
       (let ((shr-stylesheet (list)))
         (shr-generic cont)))
     (defun shr-tag-font (cont)
       (shr-generic cont))))

[1] http://www.gnu.org/software/emacs/manual/html_node/gnus/Article-Washing.html
[2] http://www.w3.org/TR/html4/
[3] http://www.w3.org/TR/html5/

-- 
FSF associate member #7257
reply via email to
[Prev in Thread] Current Thread [Next in Thread]